//判断菜单节点是否是末级节点
export default function leafUtils(){
    const setLeaf =(arr) => {
      if(arr && arr.length >0){
        for(let i =0; i < arr.length;i++){
          if(arr[i].children && arr[i].children.length > 0){
            arr[i].open = false;
            setLeaf(arr[i].children)
          }else{
            arr[i].open = true;
          }
        }
      }
      return arr
    }
    return{
      setLeaf
    }
  }